Comparison

PolyGen vs Kompressor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PolyGen

Create unique low poly art with this intuitive application. Generate endless polygon patterns automatically or manually design them. Customize colors, sizes, and more to craft abstract art, avatars, or wallpapers.

Highlights
  • Automatic polygon pattern generation
  • Manual point placement editor
  • Customizable colors and sizes
  • Convert photos to geometric art
  • Create avatars and social media backgrounds
  • Use as mobile or desktop wallpaper
Features
Read full description

PolyGen is the app for “low poly” art. It lets you generate crystal patterns automatically or manually by hand. Sometimes, apps don’t give you many options to play with, thus limiting your creativity. Because of this, we’re getting accustomed to picking predefined wallpapers or using the same old filters. If only there was a tool that would let you create pretty designs by yourself effortlessly... Enter PolyGen, the app that lets everybody be an artist. With PolyGen you can: - Generate endless amount of polygon patterns - Pick your colours, sizes, contrast and more - Create beautiful abstract art - And convert photos to geometric art too - Switch to the editor and place points by yourself - Use the pattern as your smartphone wallpaper - Or generate avatars, social media backgrounds, and more Some of the reviews: TUAW: PolyGen is a useful app which gives your iOS home and lock screens a look you can constantly freshen up. JC7133: I've been looking for an app like this for a while. The amount of customization (a massive amount) is so great. Cyberspace: Love the fact that it supports desktop screen sizes. No more scouring the web for abstract wallpapers! PolyGen features simple, useful solutions wrapped in an easy-to-use interface. You can generate new polygon patterns with one simple tap. If you wish, you can control the process and it’s easy to “lock” your favourite attributes too. Editing vertices of shapes is also simple: tap to create one or tap on an existing one to delete it. PolyGen patterns are ready to be used as mobile or desktop wallpapers, avatars, or social media backgrounds. Users have shared them on art portals and added them as illustrations to blog posts and social media. The patterns vary from colourful to calm, from simple to intricate, from abstract to photorealistic. What pattern are you going to create?

About

Kompressor

Convert RAW photos from your iPhone or DSLR into compressed JPEG or HEIC formats. Maintain control over quality, size, and metadata with flexible compression and resizing options. All processing is done offline on your device for complete privacy.

Highlights
  • RAW to JPEG/HEIC conversion
  • Adjustable compression levels
  • Flexible image resizing
  • Metadata preservation and control
  • Batch conversion up to 25 images
  • 100% offline processing
  • Preview converted images
Features
Read full description

Kompressor (a compressor with a K!) is a powerful yet simple image converter for your iPhone and iPad. Convert your photos — RAW files from your iPhone or DSLR camera*, or standard lossy images already in your library — into compressed JPEG or HEIC formats while maintaining control over quality, size, and metadata. REQUIREMENT: You need existing photos in your Photo Library to convert. Kompressor does not capture photos — it converts the image files you already have. KEY FEATURES: Convert up to 25 images at once Support for both RAW and standard (JPEG, HEIC, PNG) input formats Support for JPEG and HEIC output formats Adjustable compression levels (50%, 75%, 95%) Flexible image resizing options Complete control over metadata preservation Detailed metadata options including EXIF, GPS, TIFF, and more Device-specific metadata support (Apple, Canon, Nikon, Fuji, Olympus, Pentax, Minolta) Comprehensive compression statistics and charts Preview converted images before saving Clean, intuitive interface 100% offline processing - no data collection Support for iPhone, iPhone Duo, and iPad METADATA CONTROL: Kompressor gives you granular control over which metadata to preserve: Image Depth & Orientation EXIF, GPS, and TIFF metadata IPTC information Camera manufacturer-specific data DNG metadata Custom creation date options COMPRESSION OPTIONS: Choose from three quality levels: 50% - Maximum compression for space savings 75% - Balanced quality and size 95% - Near-original quality with significant size reduction RESIZING OPTIONS: Reduce image dimensions while maintaining aspect ratio: 50% - Half the original size 75% - Three-quarters of original size 100% - Keep original dimensions PRIVACY FIRST: All processing happens directly on your device. No analytics, no tracking, no cloud processing. Your photos stay completely private. PERFORMANCE: Optimized for modern iOS devices with support for the latest iPhone and iPad models, including adaptive layout for iPhone Duo. The app limits batch conversions to 25 images to ensure optimal performance. Perfect for photographers who want to: Free up storage space by converting RAW or JPEG files Re-compress existing photos to smaller sizes Share photos in more compatible formats Control file sizes for uploads Manage photo metadata Convert images without complex desktop software Made with love in Toronto * Digital Negative (DNG) file Note: Photo library access is required to convert images.

Screenshots

PolyGen3 screens
Kompressor3 screens

Verdict

The call

The clearest difference is price: PolyGen at Free against Kompressor's $2.99. PolyGen also leads on iOS requirement (11.0 vs 18.0). Kompressor's advantage is rating (3.8 vs 3.0) and in-app purchases (none vs 5). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

PolyGen is free to download; Kompressor costs $2.99 up front. PolyGen sells 5 one-off in-app purchases. Kompressor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Kompressor holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 47 and 28 respectively. Written reviews point the same way: 55% of PolyGen's written reviews are positive against 57% of Kompressor's.

UpkeepUpdate frequency

PolyGen ships an update monthly, Kompressor every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 5 level
PolyGen versus Kompressor: the parameters behind the verdict, then further details
ParameterPolyGenKompressor
PriceFree — better$2.99
Rating3.0 (47 ratings)3.8 (28 ratings) — better
Positive reviews55.4% of reviews57.1% of reviews — better
Number of ratings47 — better28
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#178 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.0
Further details — not scored
Size7 MB2 MB
Age rating4+4+
DeveloperBartlomiej NiemturMaysoft Inc.

Customer experience

PolyGen

All ratings47 ratings
Positive42.6%
Neutral14.9%
Negative42.6%
Written reviews83 reviews
Positive55.4%
Neutral6.0%
Negative38.6%

Kompressor

All ratings28 ratings
Positive71.4%
Neutral3.6%
Negative25.0%
Written reviews21 reviews
Positive57.1%
Neutral4.8%
Negative38.1%

Bugs and requests

PolyGen

Reported bugs

10 issues
  • Cannot see what I'm working on
  • App crashes when changing points
  • App crashes and work is not saved
  • Won't let me export files
  • Cannot save results
Show 5 more
  • Purchased but unable to save
  • Cannot save artwork or do color customization
  • Cannot export image
  • Not possible on iPhone to save pictures
  • Export crashes

Requested features

10 requests
  • Fix save/export functionality
  • Add a save feature for progress
  • Implement custom resolutions
  • Allow landscape mode
  • Add layer option
Show 5 more
  • Improve user interface
  • More control over shapes and colors
  • Add dark mode option
  • Ability to save progress
  • Custom resolutions

Kompressor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

PolyGen

One-time5
  • Color Picker$0.99
  • All Color Effects$0.99
  • All Point Distribution Styles$0.99
Show 2 more
  • SVG Export$1.99
  • Unlock Everything$3.99
None

Kompressor

No in-app purchases

Questions

Is PolyGen free?
PolyGen is free to download, with in-app purchases available.
Is Kompressor free?
Kompressor costs $2.99, with no in-app purchases.
Which has better reviews, PolyGen or Kompressor?
Kompressor is rated higher. PolyGen averages 3.0 out of 5 from 47 ratings, while Kompressor averages 3.8 from 28 ratings.
Do PolyGen or Kompressor have ads?
Neither PolyGen nor Kompressor shows ads.
Which is updated more often, PolyGen or Kompressor?
PolyGen ships an update monthly, and Kompressor every 2 months. Most recently, PolyGen was updated on November 1, 2026 and Kompressor on November 6, 2026.

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